Production Calendar Maint

We have the calendar setup for Thanksgiving as a Non Work Day. However, it is still letting the front end schedule jobs for that day. Ideas as to why?

I seeing the same issue with MRP jobs. We have next week flagged as non prod days but MRP is trying to schedule on those days. Already checked all the resource groups and everything is using the same calendar.

Never did get that figured out. The company I worked for at that time went a different direction and this was longer an issue.